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Old 05-18-2013, 03:20 PM
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The Crow 1994 The Crow 1994 is offline
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Join Date: Mar 2013
Location: Nebraska
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Vehicle: 2013 1500 Big Horn Crew 4x4
Trim Level: Hemi 5.7L w/8 Speed
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Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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The Crow 1994 will become famous soon enough

Originally Posted by dodgetank View Post
Hello! This is my first post here. I just bought a 2013 ram sport 8spd with the "3.55" rear end. After reading about a bunch of trucks getting shipped with 3.21's, I crawled underneath and sure enough, i've been screwed.

I was just wondering if the 3.21 rear end is weaker than the 3.55 or 3.92? Or maybe towing heavy with the 3.21 would put too much stress on the tranny?? From what you posted, it really seems like they shouldn't have downgraded the tow rating for this combo.

Before I attempt to get the stealership to give me what I paid for, I just want to make sure it's the best move. I like the 1400-1500 RPM on the highway, but I don't like the idea of over taxing my tranny or causing damage to a weak rear end.
Did you order your truck from the factory? Did you specifically pay $50 more for the 3.55 option, or were you told the standard was with the 3.55's?
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